Research The Structure Of Comprehensive Safety Evaluation Method In PC Simply Supported Box Girder

Safety evaluation of the kinds of construction tends to be more popular topic in recent years, for acceptance check of kinds of construction, especially the acceptance work of precast concrete box girders is objectively to judge the security reserve capacity of the actual component to evaluate the components of precast concrete box girders accurately and objectively play a key role for the smooth of the acceptance work.Based on the summary of the existing safety assessment results of bridge structure at home and abroad, combined with the characteristics of the safety of the bridge engineering research evaluation, for further detailed research of safety evaluation of precast box girder. Comprehensive analysis of the advantages and disadvantages of various evaluation, this paper puts forward a comprehensive evaluation more scientific and rigorous. Based on bridge safety evaluation, this paper constructs the comprehensive evaluation method of the evaluation grade evaluation criteria and indicators, uses a variety of evaluation methods constructs the PC simply supported box girder structure of safety assessment idea and assessment model,and VB computer program is used to establish the actual project plant for the simple box griders of PC computer evaluation model. MATLAB computer program is used to establish appearance of the project plant for the simple box griders of PC computer evaluation model.Which is based on practical engineering, the comprehensive evaluation method is applied to the engineering practice. Compare the results of the evalution with the evaluation results. Based on the specification of technical condition and load test to verify the comprehensive evaluation of scientific, accuracy and rigor.